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Q:

Whcih one is the compound in the following

A) mercury B) ozone
C) air D) ammonia
 
Answer & Explanation Answer: C) air

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Q:

Which one is the pure element

A) glass B) cement
C) sodium D) None of these
 
Answer & Explanation Answer: C) sodium

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Q:

Air is 

A) compound B) element
C) mixture D) solution
 
Answer & Explanation Answer: C) mixture

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Q:

Milk is a 

A) mixture B) element
C) metal D) None of these
 
Answer & Explanation Answer: A) mixture

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Q:

Which one is not metal

A) sulpher B) sugar
C) nitogen D) all of these
 
Answer & Explanation Answer: D) all of these

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Q:

Antimony is

A) metal B) non metal
C) non metaloid D) metalloid
 
Answer & Explanation Answer: D) metalloid

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Q:

The substances that are composed of to or more different elements in fixed proportion by mass are called

A) mixture B) compound
C) element D) None of these
 
Answer & Explanation Answer: B) compound

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Q:

Sodium carbonate crystal lose water molecules this property is called

A) hygroscopy B) deliquescence
C) efflorescence D) None of these
 
Answer & Explanation Answer: C) efflorescence

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